178 results about "Adverse weather" patented technology

The invention discloses a video recognition-based man-machine cooperative processing method for ditches and rivers in an urban area, and relates to the field of video recognition or understanding, and the method comprises the steps: constructing a data collection and analysis closed loop covering the whole periods before, during and after heavy rainfall: collecting images before and after treatment through an unmanned aerial vehicle and a camera before rainfall, generating a treatment operation influence map for quantitatively evaluating the treatment effect; in rainfall, the fixed camera is used for continuously monitoring the water level and the flow velocity; after rainfall, images are collected again, and the abnormal river reach is recognized. According to the method, camera data is taken as a boundary condition, a hydrological model is driven to perform inversion in combination with a governance influence map, missing heavy rainfall process data is deduced, and finally, accurate attribution of abnormal reasons is realized, and a differentiated governance scheme is generated. According to the method, the problem of monitoring data missing in severe weather is effectively solved, and quantitative evaluation of the treatment effect and scientific diagnosis of the abnormal cause of the river channel are realized.

The invention relates to the technical field of expressway early warning, and discloses an expressway multi-source risk factor dynamic fusion early warning system under severe weather, which comprises a multi-source risk factor acquisition module, a patrol vehicle and a mobile monitoring subunit integrated with a vehicle-mounted terminal through an along-line fixed monitoring subunit, collecting parameter data of severe weather, road conditions and traffic flow; the data preprocessing module adopts a machine learning algorithm to eliminate abnormal values, complement missing values and standardize the missing values to generate standardized risk data; the machine learning dynamic fusion module constructs a three-layer evaluation index system, a fusion weight is generated through an improved AHP model, nonlinear fusion is realized through a fuzzy integral fusion model, and a comprehensive risk value is output; and the early warning grade judgment module generates an early warning grade through threshold comparison, and finally the early warning grade is converted into standardized early warning information containing early warning types, influence road sections and duration by the early warning output module. The method provides powerful guarantee for road traffic safety.

The invention discloses a LiDAR-4D radar 3D target detection method based on dynamic denoising and dual-domain gating fusion, and the method achieves the robust 3D target detection in severe weather through the three steps: dynamic denoising, adaptive fusion, and precise detection. According to the method, a semantic guidance mechanism is introduced into a feature extraction layer, the perception ability of the network to foreground target points and the inhibition ability of the network to background noise points are enhanced, and meanwhile, the denoising threshold value can be dynamically adjusted by integrating the real-time point cloud density and weather category information through a denoising strategy of the denoising threshold value self-adaptive to environment change, so that the real-time point cloud density and the weather category information can be dynamically adjusted. Therefore, the balance between noise suppression and foreground point reservation is realized under different complex weather conditions, the fusion weight of the laser radar and 4D radar modality can be adaptively adjusted explicitly according to the real-time weather condition through a double-domain gating mechanism fusing external weather perception information, the perception ability of feature fusion to the external environment is enhanced, and the real-time weather perception information is obtained. And the rationality of the fusion strategy and the overall robustness are improved.

The application relates to the technical field of information processing, in particular to a multi-source heterogeneous sensor anti-interference fusion perception system, which aims to solve the problem of decreased perception performance of multi-source heterogeneous sensors in adverse weather such as rain and fog; the system comprises a data acquisition and synchronization module, a multi-modal feature extraction and weather interference suppression module, an adaptive multi-modal fusion module, a target detection and tracking module and a perception result output module; the system extracts robust features from the interfered laser radar and camera data in combination with millimeter wave radar information through adversarial robust feature learning; and then the adaptive fusion module is used to dynamically adjust the weights of various modes according to the weather; the application effectively improves the perception accuracy and reliability of vehicles in complex environments such as rain and fog, and guarantees driving safety.

The invention relates to the technical field of computer vision and image processing, in particular to a container detection method and system oriented to cross-modal adaptive fusion. The method comprises the following steps: acquiring a visible light image, an infrared thermal imaging image and millimeter wave radar point cloud data in a port scene; constructing a multi-modal adaptive fusion deep learning model containing an environmental perception gating network; the environment sensing gating network analyzes the current environment parameters in real time, and dynamically calculates and outputs the fusion weight of each mode; based on the fusion weight, adaptively fusing the features extracted from each modal; and synchronously identifying the container number and detecting the physical state, the safety state and the operation state of the container by using the fused features. According to the method, the accuracy and robustness of port container identification and state detection under severe weather conditions such as fog, rain, snow and night are remarkably improved, and the safety and efficiency of port automatic operation are guaranteed.

The invention belongs to the technical field of traffic target detection, and discloses a traffic target detection method, system and model architecture under severe weather conditions. The method comprises the following steps: preprocessing an input traffic scene image; performing multi-scale feature extraction on the preprocessed image, and obtaining multi-scale feature representation through AMSConv operation; carrying out bidirectional fusion on the extracted multi-scale features to obtain fusion features; the fusion features are processed, and category prediction, bounding box coordinates and confidence of the target are generated; and optimizing bounding box regression based on InfoAware-IoU measurement, and dynamically weighting a high information sample. Through multi-scale feature extraction, efficient detection head design and information perception regression optimization, the problem of visual degradation under severe weather conditions is effectively solved, and the accuracy and real-time performance of traffic target detection are improved.

We provide an imaging lens system, camera module, in-vehicle system, and mobile device with sufficient field of view and brightness for sensing inside and outside a vehicle at night or in adverse weather conditions. [Solution] The imaging lens system 11 consists of a front group Gf, an aperture diaphragm STOP, and a rear group Gr, comprising a first lens L1 with negative power whose image side faces concave toward the image, a second lens L2 with object side faces concave toward the object, a third lens L3 with positive power, a fourth lens L4 with power, a fifth lens L5 with power, a sixth lens L6 with power, and a seventh lens L7 with power. Among the lenses with positive power from the first lens L1 to the seventh lens L7, the third lens L3 has the greatest power, and when the focal length of the first lens L1 is defined as f1 and the focal length of the entire optical system is defined as f, the following condition (1) is satisfied. -2.5

This invention discloses a vehicle-road cooperative information interaction method and system based on intelligent transportation, belonging to the field of vehicle-road cooperative technology. The method includes S1: multi-source data acquisition, S2: 3D environment modeling, S3: structured analysis of traffic conditions, S4: multi-source collaborative fusion, S5: vehicle-end collaboration, and S6: adaptive optimization configuration. This invention establishes a multi-source clock synchronization benchmark, accurately measures and compensates for network transmission delay, eliminates time deviations caused by link asymmetry, and achieves motion distortion correction of laser point clouds and spatiotemporal alignment of multi-sensor data. This effectively eliminates motion distortion of lidar in dynamic traffic scenarios, enabling high-density point clouds to accurately reflect the instantaneous state of the road, balancing perception accuracy and real-time processing efficiency, improving perception reliability under adverse weather conditions, and achieving lane-level precise cooperative control and high-precision vehicle positioning capabilities.

This utility model discloses a low-temperature resistant and interference-resistant vehicle lamp, including a supporting shell. An isolation cover is fixedly installed on the side of the supporting shell, and a mounting frame is fixedly connected to the outer side of the supporting shell. A fixing screw is inserted into the side of the mounting frame, and an inner isolation plate is fixedly snapped onto the inner side of the supporting shell. Advanced UV electroplating technology concentrates the light pattern, greatly improving luminous efficiency. This not only reduces glare affecting other road users but also increases the illumination distance, allowing drivers to see the road ahead more clearly at night or in adverse weather conditions, effectively ensuring driving safety. The cover is made of UV-resistant material, increasing wear resistance and effectively preventing scratches. During long-term use, even under various harsh environments and external friction, it maintains good appearance and light transmission, extending the lamp's lifespan and reducing the frequency and cost of lamp replacement.

A vehicle includes a traction control system. The vehicle includes a controller configured to indicate a recommended speed on a display based on precipitation deposits, temperature, and speed limits, and to activate the traction control system before the vehicle intersects the vector. The indication and activation can be in response to an expected route of the vehicle intersecting an expected precipitation deposit of a weather prediction vector received from a source external to the vehicle.

The invention belongs to the technical field of power grid fault analysis and early warning, and particularly relates to a power grid fault risk early warning method based on a fault quantitative relation model, a storage medium and electronic equipment. According to the scheme, a fault quantitative relation model of dynamic and non-linear correlation between the fault rates of various power grid equipment lines and the meteorological levels of various severe meteorological types is established through preferential function fitting, and meteorological level thresholds corresponding to various power grid equipment in various severe meteorological types are scientifically set; clear and quantitative decision criteria are provided for starting fault defense measures or not, power grid fault risk early warning analysis is carried out, and early risk early warning of power grid equipment line faults in a severe meteorological environment is accurately and quickly realized. And key data support can be provided for response measures such as preparation of a power grid fault defense plan in advance, calling of emergency standby resources such as energy storage, configuration scale and the like.

The invention discloses an all-weather unstructured orchard visual navigation system, which is characterized in that an improved CycleGAN image processing module is introduced to perform enhancement processing on an image acquired under a severe weather condition, interference factors such as rain, snow and fog in the image are effectively removed, the image quality is improved, and an improved YOLOv11-seg network is combined, so that the visual navigation precision of the orchard is improved. And high-precision and high-stability segmentation of the unstructured road region is realized. Meanwhile, a continuous, smooth and controllable navigation path is constructed based on a path line generation method of pixel mutation detection and cubic B-spline fitting, and path planning precision and operation stability in an orchard scene are guaranteed. The constructed all-weather unstructured orchard visual navigation system comprises three modules: an all-weather adaptation module based on the improved CycleGAN, a road segmentation module based on the improved YOLOv11-seg, and a navigation path line generation module.

The utility model discloses a honeysuckle planting supporting device, and relates to the technical field of agricultural planting. The honeysuckle flower planting frame comprises a rectangular mounting frame, and honeysuckle flowers are planted in the mounting frame; the fixing frames are fixedly arranged at the top of the mounting frame at equal intervals, and the fixing frames are in an isosceles trapezoid shape; the supporting rods are detachably arranged on the two bevel edges and the top of the fixing frame, and the supporting rods are used for supporting honeysuckle branches; the connecting rod is arranged at the end, away from the fixing frame, of the supporting rod. The main branches of honeysuckle are supported, the branches are effectively supported through the design of the supporting rods and the connecting rods, the overall photosynthesis efficiency and the flowering and fruiting rate are improved, and therefore the yield and the quality are improved, the supporting rods are detachably designed, installation and maintenance are convenient, and under the severe weather condition, the supporting rods can be used for supporting the main branches of honeysuckle. A plastic film can be conveniently laid to protect honeysuckle plants, and the practicability and adaptability of the device are enhanced.

A computer-implemented method includes using an image captured by a vehicle camera on the vehicle to determine a vehicle visibility distance for the vehicle with a computing device on the vehicle. The determined vehicle visibility distance is compared to a predetermined desired visibility distance and a first drone is used at the vehicle visibility distance away from the vehicle when the vehicle visibility distance is less than the predetermined desired visibility distance. An image captured by the vehicle camera is combined with a first drone video image captured by the first drone to provide a combined image having a total visibility distance of a sum of the vehicle visibility distance and a first drone visibility distance.

The application discloses a target detection method, a detection system, a vehicle and a visual environment monitoring device thereof, and relates to the technical field of computer vision and artificial intelligence. The method comprises the following steps: extracting first inference features from an input foggy image through a main detection flow; inputting the first inference features into an inference-time fusion adapter in the main detection flow to generate second inference features and a pseudo-transmittance map; taking the pseudo-transmittance map as a physical space guide, and performing cross-attention fusion on the first inference features and the second inference features based on the physical guide through a PI-CAF module in the main detection flow to generate enhanced inference features and output a predicted target detection result. The application can solve the training-inference inconsistency problem in the prior art, and realize efficient and physically interpretable feature recognition based on a physically-perceived, interpretable and spatially-adaptive enhancement mechanism, so that real-time and accurate environment perception can be provided for an intelligent transportation system under adverse weather conditions such as foggy weather.

The application discloses a steel pipe pile sinking positioning platform for a typhoon-prevention offshore crane ship, and belongs to the technical field of offshore foundation structure construction. The steel pipe pile sinking positioning platform comprises a support frame which realizes a supporting function, a working platform fixedly installed at the upper end of the support frame, and suction cylinders uniformly installed at the lower end of the support frame. The steel pipe pile sinking positioning platform further comprises a guide seat fixedly installed at the upper end of the working platform, a limiting assembly penetratingly arranged at the lower portion of the guide seat, an adjusting assembly installed on the upper surface of the working platform, and an auxiliary supporting mechanism arranged on a protection plate and a buffer plate and used for realizing temporary auxiliary support. The steel pipe pile sinking positioning platform can accurately position steel pipe piles with different diameters and sizes, effectively improves the sinking precision of the steel pipe piles and reduces the abrasion of the steel pipe piles, and can buffer and provide auxiliary support for the support frame in adverse weather such as typhoon, thereby further improving the use stability of the positioning platform.

The application discloses a kind of meteorological warning information fusion method and system based on road network, comprising: obtaining road network topology and meteorological characteristics, clustering forms aggregation unit and sets shared threshold;According to unit, obtain multi-source warning data and standardization;By scheduling mechanism, deduplicate, sequencing and conflict resolution get comprehensive result;Extract weather system movement parameter and calculate differentiated early warning advance;Determine risk level and confidence interval in combination with real-time traffic state fuzzy reasoning;Query emergency resource linkage traffic control system and push warning;Collect historical data closed-loop feedback optimization model parameters;Application optimization model realizes road network meteorological warning.The application significantly improves the spatiotemporal accuracy and response efficiency of meteorological warning, reduces the road network traffic risk under adverse weather.

The invention provides a multispectral detection method. The method comprises the following steps: firstly, acquiring visible light-infrared image pairs under severe weather conditions (dark light, rainy days, snowy days, foggy days and the like); secondly, inputting the visible light-infrared image pair into a double-flow feature extraction network to respectively extract multi-scale key features of each modal; thirdly, constructing a lightweight feature fusion network based on a hybrid expert system, evaluating the contribution degree of each modal feature to a detection effect, and extracting complementary features; and finally, designing a complementary feature multi-scale feature aggregation network and a target classification positioning detection head, and obtaining target position and category information. The method can be applied to target detection under extreme weather conditions.

The utility model discloses a starry sky tent device suspended in the air. The device comprises a helium balloon, a starry sky tent main body, a landing platform, traction steel cables and an elevator, wherein the helium balloon is located at the top and provides overall buoyancy of the whole device; the starry sky tent main body is located in the middle; according to the starry sky tent device, the starry sky tent can be always in a suspended state through buoyancy provided by the helium balloon on the top, basic life requirements and starry sky observation activities can be provided for users, and the stability and safety of the starry sky tent device suspended in the air can be guaranteed on the basis of the traction steel cable under severe weather conditions.

The application provides an optical autonomous cooperative detection and identification method based on multi-modal data, and belongs to the technical field of machine vision. The advantages of visible light, infrared and laser sensors are comprehensively utilized to overcome the limitations of single sensors in adverse weather, complex background or strong light interference. Two independent algorithm processes are used for synchronous visible light search and infrared search of visible light and infrared images to ensure that even if one sensor fails or performance decreases due to environmental conditions, the other sensor can still serve as an effective supplement, greatly improving the first capture probability and overall reliability of the system for the target. A slice-assisted super-reasoning YOLOv5 algorithm based on a sliding window is used to process the visible light image, effectively improving the detection accuracy of distant small targets or dense targets and overcoming the performance bottleneck of traditional methods when the resolution is insufficient. The infrared image is divided into weather and environment types, and the corresponding algorithms in the prior algorithm library are dynamically called.

The invention provides a lightweight high-strength basalt fiber composite material multifunctional electric pole, accessories, a preparation method and application. Through a diamond structure, metal / fiber hybrid reinforcement and a multi-angle laying multi-stage synergistic reinforcement mechanism, the weight is greatly reduced, meanwhile, extremely high mechanical strength is achieved, and the contradiction between light weight and high strength is solved; the integrally-formed ultraviolet-proof layer and the weather-proof modified resin matrix jointly form a dual-protection system, it is ensured that the product can pass a strict ultraviolet aging test, the service life is prolonged, and the service life far exceeds that of a traditional electric pole; the weight is greatly reduced, so that the transportation and installation cost is reduced, installation personnel are reduced, large machinery is not needed, and the construction efficiency is improved by multiple times; due to the high-toughness design, the cable is excellent in performance under severe weather such as typhoon; the use safety is improved due to the insulating and flame-retardant characteristics; the special power distribution system fundamentally solves the problems of gliding, water inflowing and the like in the application of the composite material rod, and high reliability is achieved.

The application discloses a large railway hub overhead off-ramp dynamic traffic flow control method, realizes dynamic self-adaptive adjustment of vehicle stay time threshold according to real-time traffic state (queue length, lane occupancy rate and driving-in flow) of the ramp, automatically compresses the allowed stay time to accelerate vehicle turnover in peak congestion period, and appropriately relaxes in low peak idle period to improve humanized experience; a multi-dimensional dynamic correction factor system is constructed, time period characteristics (peak / flat / low), environmental factors (adverse weather such as rain, snow and fog, holidays / large events), historical overtime statistical rules and the like are brought into a dynamic control calculation model, and the adaptability and robustness of the control strategy are improved; a self-learning mechanism based on historical overtime rate feedback is introduced, so that the algorithm can automatically adjust the laxity according to actual operation data, stabilize the overtime rate in a preset target range, and realize continuous optimization iteration of the control strategy.

This utility model belongs to the field of amphibious unmanned surface vessels (USVs), specifically relating to a folding airfoil sail amphibious USV. It includes a base, with a hydraulic telescopic rod at the upper end of the base, a mast at the upper end of the hydraulic telescopic rod, an upper sail on the upper outer side of the mast, a lower sail on the lower outer side of the mast, and a stepper motor at the upper end of the mast. This utility model features a unique folding mechanism, allowing the sail to be folded and stored when not in use. This not only improves the portability and storage efficiency of the equipment but also reduces wind and water resistance in adverse weather conditions or when underwater operations are required, lowering the risk of equipment damage. Using a symmetrical airfoil sail maintains good aerodynamic performance under different wind directions and angles, providing stable and continuous aerodynamic propulsion. This design not only improves wind energy utilization efficiency but also enhances the USV's adaptability to complex and changing environmental conditions.

The present invention relates to a system, server, device, and method for calculating risk assessment indicators, wherein a wearable image analysis device worn by a user of a means of transportation or mounted to be synchronized with the user's gaze direction, or an image-based risk assessment device linked with a vehicle camera, black box, vehicle-mounted ADAS camera, mobile device, on-board unit (OBU), vehicle-to-everything (V2X) terminal, etc., identifies a driving context from a front image, location information, sensor information, or vehicle status information, determines a risk event according to differential safety standards for each context and outputs a warning, and measures response data including whether to return to a normal state, the time required for return, the number of warning repetitions, the duration of ignoring, and the amount of behavioral change based on the time of warning output or the time of risk event confirmation. The above system generates risk assessment indicators, behavior-based safety scores, or premium rate calculation factors by cumulatively analyzing risk event data and response data, and reflects warning responsiveness independently of the frequency of risk event occurrences. Furthermore, it can enhance the precision and fairness of risk assessment by utilizing warning-free driving indicators, Time to Collision (TTC) correction models, multimodal dynamic weights, adverse weather preprocessing, individual baseline correction, and user-level continuous responsiveness profiles. In addition, the present invention can reduce data tampering and personal information exposure through the calculation of complete indicators within the device, the output of interaction data packets, verification of event packet integrity based on a Trusted Execution Environment (TEE), dual trajectory cross-verification, and on-device anonymization, and depending on the embodiment, it can also be applied to the calculation of risk assessment indicators based on wearable devices, mobile devices, or automotive devices.

The invention discloses a flight method for an unmanned aerial vehicle under severe weather conditions based on multi-modal adaptive control, and aims to solve the problem that the reliability is difficult to evaluate online and the stable control is difficult to realize when a multi-modal sensor gradually degenerates or intermittently loses efficacy due to severe weather. The method comprises the following steps: obtaining and performing time alignment on at least two kinds of sensor measurement data, performing cross-modal consistency check based on an unmanned aerial vehicle model to obtain a residual error, and determining a meteorological category identifier according to airborne or external meteorological data; carrying out confidence judgment by adopting quantile thresholds updated by exponential decay according to meteorological categories, and generating health degrees and measurement error upper bounds of all modals; continuously adjusting the measurement noise covariance based on the health degree in the mobile horizon estimation, and introducing continuous adjustment of a slack variable and a penalty weight of the slack variable to obtain state estimation and an error boundary of the state estimation; and the error boundaries are mapped into the tubular radius predicted and controlled by the tubular robust model, control constraints are continuously tightened after hysteresis and filtering smoothing, the control quantity is solved and issued and executed, and the technical effects of controllable continuous degradation and stable flight of multi-modal fusion and control parameter linkage are achieved.

The present invention provides a rear-view mirror and an image display method of a rear-view mirror. The rear-view mirror according to a preferred embodiment of the present invention captures an image by using a camera, detects a person by using a LiDAR sensor in a favorable weather situation, and detects an object by using a radar sensor in an adverse weather situation. In addition, the rear-view mirror may match a person or object detected in the image with the person or object detected by using the sensors on the basis of the locations thereof and, when displaying the image on a display of the rear-view mirror, display additional information obtained using the sensors for the corresponding person or object, thereby enabling the driver to more clearly identify an object included in the image and obtain additional information such as the distance to a person or object, so as to contribute to safe driving.

The utility model relates to provide an attached bridge suspender tensioning operation platform, including fixed frame end, pasting on the upper beam surface of the cantilever beam, and with the cantilever beam constitute the combination of surface and surface, entrance guardrail is fixedly connected with fixed frame end, and the operating personnel enters from the entrance guardrail, and the middle passage is connected with the entrance guardrail and is arranged downwardly extending, and the operating personnel passes up and down from the middle passage, and the lower operation platform is communicated with the lower end of the middle passage, and the lower operation platform constitutes the support platform of operating personnel and equipment, and is suspended to the lower side of the lower beam surface position of cantilever beam, and the surface and surface combination mode of fixed frame end and cantilever beam forms the rigid connection structure of stable, compared with traditional gondola, aerial work platform, greatly improves the anti-overturning capacity of platform under the adverse weather condition, reduces the equipment overturning and personnel falling risk, avoids the hidden danger of accidental falling in traditional operation mode due to the lack of reliable passage, can conveniently hoist and transport, improves construction efficiency, reduces construction cost.

A protective foot sleeve device is provided. The device is designed to provide a temporary waterproof and thermally insulated barrier for a user's foot and footwear in adverse weather conditions. The device comprises a body configured to accommodate various foot anatomies and to extend over the ankle or lower calf, the body comprising an outer layer formed from thermoplastic polyurethane for waterproofing and durability, and an inner layer formed from neoprene for thermal insulation and moisture-wicking. The body may further comprise an insole-receiving pocket configured to retain an insole removed from the user's footwear, wherein the pocket may include a closure mechanism to secure the insole and prevent water ingress. The device also comprises an elastic or drawstring cuff configured to encircle the user's ankle or lower calf, thereby minimizing the entry of water or debris.

A vehicular electricity generating canopy appliance includes a rectangular framework forming a vehicular chassis with solar panels, support apparatus for repositioning panels, auxiliary wheels, a trailer dolly for towing, and an electrical system connected to an inverter supporting optional Vehicle to Grid (V2G) operations. The vehicular canopy is designed to be movable and storable to protect the panels during adverse weather conditions.